When someone you love goes missing, every moment feels like a lifetime. Families searching for answers often find themselves overwhelmed, anxious, and desperate for help. That is where an experienced missing persons detective in Mount Vernon can make all the difference.
At New York Intelligence Agency, founded and led by investigator David Schassler, our mission is simple but powerful: to locate missing persons and reunite families. With extensive investigative expertise and a proven track record, David Schassler has earned a reputation as one of the most respected missing persons detectives in New York.

Mount Vernon, located in Westchester County just north of New York City, is a vibrant city with a dense population and a steady flow of residents, commuters, and visitors. While Mount Vernon is a close-knit community, its proximity to major highways, transit lines, and urban centers can complicate missing persons cases.
Whether you are searching for a runaway teen, a missing spouse, an estranged family member, or even a vulnerable elderly loved one, these cases require the expertise of a professional. Law enforcement agencies do their best, but they are often overwhelmed and limited in resources. A dedicated missing persons detective in Mount Vernon provides the focused attention and advanced investigative strategies necessary to uncover the truth.
David Schassler, the founder of New York Intelligence Agency, has spent decades solving complex cases and bringing answers to families in crisis. Known for his tenacity, compassion, and results, David has become a trusted name in the field of private investigation, particularly in missing persons investigations.
He combines traditional detective work with modern investigative tools to track down leads that others may overlook. From conducting detailed witness interviews to utilizing advanced digital tracing techniques, David Schassler takes a comprehensive approach to every missing persons case.
For families in Mount Vernon, David isn’t just an investigator—he’s a lifeline when hope feels distant.
When families contact New York Intelligence Agency, they receive more than a search effort. They receive a customized investigative strategy designed to bring clarity and closure. Our missing persons services in Mount Vernon include:
Runaway Teen Investigations – Teens often run away due to family conflict, peer pressure, or difficult circumstances. We specialize in locating minors and reuniting them safely with their families.
Missing Family Members – From estranged relatives to sudden disappearances, we work tirelessly to reconnect families.
Kidnapping and Abduction Investigations – In critical, high-risk cases, we coordinate with law enforcement while conducting independent investigations to locate abducted individuals.
Elderly Missing Persons – Vulnerable individuals suffering from dementia, Alzheimer’s, or other conditions require immediate and careful attention.
Adoption and Biological Family Searches – We assist individuals in finding biological relatives and uncovering family history.
Witness Location – For legal proceedings or court cases, we help attorneys locate witnesses vital to their cases.
Digital and Online Tracing – Many missing persons cases today involve a digital footprint. We employ advanced online tracking and cyber-investigative tools to uncover leads.
Each case is approached with professionalism, discretion, and persistence. Our goal is always the same: to find answers and bring loved ones home.
When you hire David Schassler, Missing Persons Detective in Mount Vernon, the process is clear, structured, and thorough. Every case is unique, but the steps we follow ensure no stone is left unturned.
Initial Consultation – We begin by listening. Families share everything they know: last-seen details, habits, digital activities, and circumstances surrounding the disappearance.
Case Assessment – David Schassler evaluates the information and develops an investigative plan tailored to the situation.
Research and Data Collection – We analyze records, digital evidence, phone and social media activity, and known contacts.
Field Investigation – This includes surveillance, interviews with friends, neighbors, coworkers, and other relevant parties.
Collaboration with Authorities – In many cases, working alongside law enforcement strengthens the investigation and increases chances of success.
Ongoing Updates – Families receive regular reports and updates as the investigation progresses.
Resolution – Our ultimate objective is a safe recovery or, at the very least, providing families with the answers they need.
This proven process is why so many families trust David Schassler and New York Intelligence Agency with their most urgent and personal cases.

Choosing a private investigator is a critical decision. During one of the most stressful times in your life, you need someone who combines professional skill with compassion. Families in Mount Vernon choose David Schassler for many reasons:
Experience: Years of expertise in missing persons cases across New York and beyond.
Local Knowledge: An understanding of Mount Vernon’s neighborhoods, communities, and surrounding areas.
Compassionate Approach: Every case is treated with sensitivity, respect, and discretion.
Results-Oriented: A history of solving difficult cases and providing answers where others could not.
Confidentiality: Protecting client privacy at all times.
For many families, working with David Schassler, missing persons detective in Mount Vernon, has meant finding closure, reunification, and peace of mind.
While Mount Vernon is a central hub for our investigative work, missing persons cases often extend beyond the city’s borders. David Schassler and his team at New York Intelligence Agency are prepared to follow leads across New York, throughout the United States, and even internationally.
From neighborhood-level searches in Mount Vernon to complex multi-state investigations, we have the resources and determination to pursue answers wherever the case leads.
When someone disappears, time is critical. The sooner you act, the greater the chances of a successful outcome. If you need a missing persons detective in Mount Vernon, trust David Schassler and New York Intelligence Agency to take immediate and decisive action.
Today to schedule an appointment and learn more about how we can help.
OFFERING THE MOST UP-TO-DATE SURVEILLANCE TECHNIQUES
Matrimonial Investigations & Voice Stress Analysis – Truth or Lie Detection along with Executive Protection.






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